Tie-plate



J. LUNDIE AND G. W. WHITEMAN.

. TIE PLATE. APPLICATION FILED FEB.2I, 1921.

Patented June 14, 1921.

Fig.2.

ulvonz V GEORGE W WHITEMAN ZQW UNITED STATES PATENT OFFICE.

JOHN LUNDIE, OF NEVI YORK, N.

Application filed February 21, 1321.

To all to 71 cm it may concern PENNSYLVANIA.

TIE-PLATE.

Specificationof Letters latent.

Be it known that we, JOHN LUNDIE and Gnonon W. Wnrrniriin, UnitedStates, residlng at York, and Ph1ladelphia,

speetively, have invented certain new 'lfie-Platbs, oi winch usefulImprovements in both citizens of the New York, Blew Pennsylvania re andthe following is a specification.

This invention relates to tie-plates for railway rails, the platepreferably being constructed and designed for use tinuous type oirail-joint under the abutting ends of joint bars interposed w ith theconso that it will lie the rails, with the beween said rail ends and thetie-plate although the tie-plate may also be placed at other locationstinuous rail-joint is not used.

where a con- One oi the objects of the present invention is to provide atie-plate struction as will give a proper seat a port for the oint uponthe tie.

of such conr supin a meas ure, the present invention makes use ct someof the principles found in prior Reissue Letters Patent of JohnLundie,'l*io. l hlQ l,

dated May 2, 19l6. Another obj ect of the present invention is toprovide a tie-plate oi that type in which the top-seating surfacethereof is inclined so as the line of thrust of wheels, which specialmeans the continuous ty )e of rail-joint.

the invention are to provide an ethjects oi to be normal to the coningoi' the cartie-plate is provided with adapted for association with Otherobcient and practical tie-plate which has, at

its top, means adapted thrust.

to receive lateral These bein amon the obects ot the n'es out invention,the same features of construction and consists of certain combinationsof parts to be hereinafter described and then claimed with reference tothe accompanying drawings illustrating one embodiment of the invention,and in which:

Figure l is a plan view of with which the continuous joint thetie-plate, may be employed to connect the adjacent ends of two rails.

Flg. 2 is an edge view of the plate;

Fig. 3 is an elevation viewed toward the thlnner edge of the t1e-plate,and

Fig. i is a transverse section oi the plate,

the said joint and in side elevation.

In the drawings, two rails,

a rail, the tie being shown of which rail latented J une 14, 1921.

Serial No. 446,834.

10 is shown, are connected by means of joint bars 12, 13 of suitablecrosssection, said joint bars having mutually presented baseiianges let,15, upon which the bases of the two rails rest. The tie l6 may be anyusual wooden tie.

Our improved tie-plate, which may be used in association with such jointbars as 12, 13, comprises the plate proper l7, preferably having on itsbottom or base a plurality of tie-engaging elements preferably such asare shown and described in atoresaid patent. Means are provided so thatthe lateral thrust may be imparted to the tieplate, and preferably, suchmeans consist of a longitudinal rib or shoulder 18, which is located atapproximately the mid-width of the tie-plate l7 and extends from end toend.

The tieplate when used with the continuous joint is positionedthereunder and seated upon the tie, with the thrust-receiving shoulderor rib 18 positioned between the base-flanges 14, 15 of the jointbar-s12, 13, so that the adjacent edges of said flanges will s Jan thesaid shoulder. When the parts are bolted and spiked, the lateral thrustis transmitted to the rail, and thence to the joint bars, and will betransmitted laterally to the shoulder 1.8 intermediate of the jointbars. The tie-plate need have no outer shoulder such as the edge of arail would ordinarily abut against it the joint bars were not used.Preferably, said tie-plate 17 is provided with a slight camberlongitudinally thereof, and which may provide not only a concavedtransverse base for the plate, but a convex transverse top. Preferably,the radius of curvature of the described camber is about 10 feet, asthis curvature in practice has been found to be probably the best suitedfor the particularly described tie-engaging elements on the tie-plate.

Preferablyalthough not necessarily-the upper surface of the tie-plate isinclined as above mentioned, and in such cases it is preferred that thetie-engaging elements upon he base of the tie-plate be constructed asshown, that is to say, its under surface will have a plurality ofseating surfaces which are spaced apart, said surfaces being indicatedat 19, 20, 21, 22 and 23. These seating surfaces, in the preferredembodiment of the invention, extend throughout the length of the tieplate, and are disposed in planes parallel with each other, planesextending at acute angles to the supporting surfaces of the ties, andare also parallel, substantially, with the upper surfaces of the headsof the rails and with the bases of the joint bars l2, 13. These surfacesare arranged, as shown, with a plurality of steps, the steps beingjoined preferably by reverse curves forming shoulders which are convexat 24, being the lowest level of the undersurface of the base of thetie-plate, and which are concaveat 25, being the highest level of theundersurface.

In the specifically described and illus trated embodiment of theinvention it will be seen that the tie-plate will gradually form its ownseat in the ties without injury to the fibers of the ties; that thedescribed combination of parts will practically eliminate all outwardthrust due to the coning of the wheels, for the reason that in thespecific embodiment of the invention all bearing surfaces will be normalto the line of thrust of the coned caruvheels or wheel load; and, thatif the tie-plate be cambered as described, it will have more or less ofa springy action, to permit it to be flattened out as the load passesover it, the plate assuming its camber when the load is removed, untilthe tie ultimately assumes a convexity corresponding to the concavity ofthe plate.

Spikeholes 26 are preferably made in the tie-plate, so as. to coincidewith the spike-holes usually made in the ends of the joint-bars.

Obviously, the invention described and illustrated is susceptible ofmodification, and this may be resorted to by those skilled in the artwithout departing from the scope of the claims.

W hat we claim is:

l. The combination with a tie-plate having an upper thrust-receivingshoulder po-.

sitioned in the zone thereof, over which the rail is to be positioned,of rail-joint bars applied to said plate with the inner edges of theirbases spanning said shoulder.

2. The combination with a rail, andjointbars applied to said rail, of atie-plate having an upper shoulder, the inner flanges of said joint-barsbeing between the rail and tie-plate, and said shoulder being betweenthe adjacent edges of said flanges to take up lateral thrust.

8. The combination with a tie-plate having an upper thrust-receivingshoulder positioned in the zone thereof over which the rail is to bepositioned, of rail-joint bars applied to said plate with the inneredges are arranged in of their bases spanning said shoulder, said platebeing also cambered longitudinally.

at. The combination with a tie-plate havingan upper thrust-receivingshoulder positioned in the zone thereof, over which the rail is to bepositioned, of rail-joint bars applied to said plate with the inneredges of their bases spanning said shoulder, the base of said platehaving a plurality of tieengaging elements.

The combination with a tie-plate having an upper thrust-receivingshoulder positioned in the zone thereof, over which the rail is to bepositioned, of rail-joint bars applied to said plate with the inneredges of their bases spanning said shoulder, the base of said platehaving a plurality of longitudinal tie-engaging urfaces disposed indifferent planes.

6. The combination with a rail, and jointbars applied to said rail, of atie-plate having an upper shoulder, the inner flanges of said joint-barsbeing between the rail and tie-plate, and said shoulder being betweenthe acent edges of said lianges to take up lateral thrust, saidtie-plate having a jointbar seat normal to the line of thrust of theconing of a car-wheel and lower surfaces parallel with said seat.

7. The combination of a tie-plate, railjoint bars resting upon saidplate, and thrust-receiving means on the plate and between adjacentsurfaces of the joint bars.

8. The combination of a tie-plate, railjoint bars resting upon saidplate, and thrust-receiving means integral with said plate and spannedby and between the adj acent surfaces of the joint bars.

9. The combination of a tie-plate, a railjoint bar, and means located onthe plate and at the inner edge of the bar for taking up lateralthrustof the bar.

10. The combination of a tie-plate, ailjoint bars resting upon saidplate, and means located between the bars for trans mitting the lateralthrust of the bars to the tie-plate.

11. The combination of a camberedtieplate, rail-joint bars resting uponsaid plate, and means located between the bars for transmitting thelateral thrust of the bars to the tie-plate.

12. The combination of a tie-plate having an inclined upper surface,rail-joint bars resting upon said plate, and means located between thebars for transmitting the lateral thrust of the bars to the tieplate.

JOHN LUNDIE. GEORGE W. WHITEMAN.

